US PATENT SUBCLASS 122 / 317
.~.~ Straddle

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

235.11  DF  WATER TUBE {52}
305  DF  .~ Spur {8}
317.~.~ Straddle

DEFINITION

Classification: 122/317

(under subclass 305) Devices in which the spur water tubes straddle the combustion chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

99, and 270, for spur tubes having internal fire tubes straddling the combustion chamber.

324+, for other types of water tube boilers of the straddle type.